• Hildegarde@lemmy.world
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    5 months ago

    Imagine designing a bicycle without triangles. Every joint needs to be overbuilt, because there’s no structure from the geometry. But you make sure it still has a top tube, so its just as hard to mount and dismount as a normal bike. Incredible!

    • Kecessa@sh.itjust.works
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      5 months ago

      Right? Who would be crazy enough to do that?

      Next you’re going to tell me someone will make one without a top tube?

      • pyre@lemmy.world
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        5 months ago

        doesn’t that prove their point? they all look overbuilt, as the original commenter said.

        • Kecessa@sh.itjust.works
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          5 months ago

          Carbon fiber, aerodynamics…

          For this one it’s used as suspension (not carbon fiber)

          Not that rare in old mountain bikes either, pretty sure my old steel Raleigh was similar

          • Natanael@slrpnk.net
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            5 months ago

            Carbon fiber has very limited lifetimes when used for something with a lot of hard impacts, so if you’re not sticking to smooth surfaces the bike can literally split apart with little warning

              • Natanael@slrpnk.net
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                5 months ago

                I Googled “motorcycle carbon fiber wheel” and autocomplete immediately suggested adding “failure” and doing that search has endless relevant results

                • Kecessa@sh.itjust.works
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                  5 months ago

                  And if I do a research for “Toyota Tercel engine failure” I find tons of results as well even though it’s one of the most reliable car ever built.

                  Crazy how search engines show you results for what you’re looking for, right?

                  • Natanael@slrpnk.net
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                    5 months ago

                    https://www.bikeradar.com/features/are-carbon-fiber-clinchers-safe

                    They have limited tolerance for heat that you can’t solve without either improving cooling or reducing hard acceleration / deceleration (using additional material) when used in wheels. When used in frames you need to reduce stress points with very good dampening.

                    They can certainly be strong, but they have similarities to tempered glass where damage accumulates over time and can’t self heal so they have a best before date built in.